ruby -cw
- checks syntax and gives warnings without executingirb --simple-prompt --noecho
- simpler prompt without echos (aka self-explanatory)load filename.rb
- this will allow me to update while testing in irbrake
- Ruby make task-management utilityri String#upcase
- quickly look at rdocs for given method / classgem install ___
- really easy to add third party gemsChapter 2
def m(a, b=2, *c, d)
- example of argument lists